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3 years ago

What cell type has no membrane-bound organelles, has DNA that is found in an area called the

Engineering

2 answers:

AnnZ [28]3 years ago

6 0

Answer:

Prokaryotic cell

Explanation:

DanielleElmas [232]3 years ago

4 0

Prokaryotic cell is the correct answer. A good way to remember is Eukaryotic cell is a you cell since that is the kind of cell that makes up your body

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The website of a bank that an organization does business with has been reported as untrusted by the organization's web browser.

sweet-ann [11.9K]

Answer:

B. The website's certificate still has the old bank's name

Explanation:

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3 years ago

Computer system analyst advantage

Vlad1618 [11]

Answer:

They help an organization realize the maximum benefit from its investment in equipment, personnel, and business processes. They use and analyze systems, interpret data, and customize systems to better meet the organization's needs.

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2 years ago

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A student is building a circuit which material should she use for the wires and why?

Nataliya [291]

Answer:

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3 years ago

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What are the basic parts of a radio system

Romashka-Z-Leto [24]

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3 years ago

The Ethernet (CSMA/CD) alternates between contention intervals and successful transmissions. Assume a 100 Mbps Ethernet over 1 k

Vesnalui [34]

<h3><u>CSMA/CD Protocol: </u></h3>

Carrier sensing can transmit the data at anytime only the condition is before sending the data sense carrier if the carrier is free then send the data.

But the problem is the standing at one end of channel, we can’t send the entire carrier. Because of this 2 stations can transmit the data (use the channel) at the same time resulting in collisions.

There are no acknowledgement to detect collisions, It's stations responsibility to detect whether its data is falling into collisions or not.

<u>Example: </u>

$T_{P}=1 H r$ , at time t = 10.00 AM, A starts, 10:59:59 AM B starts at time 11:00 AM collision starts.

12:00 AM A will see collisions

Pocket Size to detect the collision.

$\begin{aligned}&T_{t} \geq 2 T_{P}\\&\frac{L}{B} \geq 2 T_{P}\\&L \geq 2 \times T_{P} \times B\end{aligned}$

CSMA/CD is widely used in Ethernet.

<u>Efficiency of CSMA/CD:</u>

In the previous example we have seen that in worst case $2 T_{P}$ time require to detect a collision.

There could be many collisions may happen before a successful completion of transmission of a packet.

We are given number of collisions (contentions slots)=4.

$\text { Propagation day }=\frac{\text {distance}}{\text {speed}}$

Distance = 1km = 1000m

$\begin{aligned}&\text { Speed }=2 \times 10^{8} \mathrm{m} / \mathrm{sec}\\ &T_{P}=\frac{1000}{2 \times 10^{8}}=(0.5) \times 10^{-5}=5 \times 10^{-6}\\ &T_{t}=5 \mu \mathrm{sec}\end{aligned}$

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3 years ago